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Probably because the current M1 Pro is a totally different bike... 48v electronics rather than 36v with new controller and display, torque sensor rather than cadence, newer 80mm suspension... if you look at it there's little on the current M1 Pro model that's the same as your old, early model...

Well, it IS a problem now because it would likely be flashing an "E" error code; there'll be a look-up table for that that should tell you what the problem is/is likely to be.

Well, that's new information! A battery with low SOH would/should still work, so I doubt three flashing LED's is your problem. Maybe the broken display? Wet? Loose/poor connection(s)?

If the battery still gives you the range you need, then just keep using it. Just be aware that you'll probably need to replace it sooner rather than later. It's only theoretically knackered; the SOH is based on cycle count, i.e. the number of times it's been fully charged and discharged, often...

IIRC, it's either an STL battery or a Phylion. If the latter, then 3 flashing LED's only suggests it's wearing out at 70-80% of as new capacity. The fault table below shows that any error would be indicated by just 1 LED flashing at a time, not 3 together.

The above are for the D1. This for the D2/D2S should be the same - or at least very similar...

I'd be inclined to clean the board up, test and replace the obviously damaged components, then plug it in and see what happens. For an hour or so work with a multimeter and a few cheap caps it may still work.

Probably because when your laptop is connected the display is getting 5v from the laptop USB to enable it to function. If you've now dried all your wet connections, have you tried reloading the bikes software, and leaving the USB lead connected to still provide that 5v then tested the bike to...

You can check continuity/integrity of the wiring using a basic multimeter. One thing you do need to establish is that your cadence sensor is working properly. The diagnostic test doesn't always show if there's a fault there, and being where it is, it gets covered in wet and crud. A good...

Your best approach would be to download the TranzX software "Logix" if you can find it... I last saw someone posted a downloadable copy on Reddit. Officially it's only meant for dealers, but a lot of people have it now as TranzX isn't commonly used/supported here in the UK anymore. That links...

Checking Halfords website just now, it says the battery capacity is 317Wh. That's a smaller battery than you'd usually find on most e-bikes today. I'd say your 20ish miles is probably about right if you're using the higher assist levels. If your dilemma is running out of assist on your way home...

Which kind of makes having any lock on your battery a total nonsense when any fool can take the number off your lock and buy a spare key on ebay. My battery lock came with four keys and there're no markings; four so you can afford to lose one or two as the maker says they don't/won't supply any...

There's a brand new DP15 display on ebay right now: https://www.ebay.co.uk/itm/326515461074?_skw=tranzx+dp15

You need to remember what other mid-drive bikes were around 8 years ago in 2017; an e-bike with the Bosch mid-motor was then about £600 more and sounded as loud and as rough as a milk float... IMO, the TranzX M16GT used on the Strada is far smoother... and quieter... and cheaper. The Raleigh...

I have a TranzX driven e-bike too. AFAIK nobody in the UK supports TranzX anymore, but they're still big in Germany and have a parts and distribution centre there. They likely won't deal direct with you, but it'd be worth emailing/calling to see if they still make and/or have stock, which you...

I've dealt with Enerprof.de and found them nothing less than professional. With those charger plugs, you can unscrew the plastic collar and the plug comes apart to see which is plus and minus and measure more easily. Your expectation to "see around 54.75V" is unrealistic given the charger...

If that's the Ebco UCL10, then it was Ebco's bargain basement entry-level model circa 2016 with front hub drive and a basic TranzX LED PST display. PST predates CANbus, but dealers still had a rudimentary "test-box" to interrogate the system... it may have been analogue or UART. There may have...

All three of these from the OP's linked Amazon page...

The OP's Vitesse Signal e-bike is on offer at Go Outdoors for £399.97 (subject to a £5 membership fee) here. Amazing bargain, despite having rim-brakes and a small battery. Both Amazon and GO say 5-levels of assistance.

Having just looked, there's nothing in either battery fault finding guide - for both Phylion and STL Carrera Crossfire batteries - that causes that (one or more LEDs may flash to indicate certain faults, but not all together) so my money would too be on a catastrophic error like a dead short as...